The BIOS firmware supports both legacy boot mode and Unified Extensible Firmware Interface (UEFI) boot mode.
The default setting is legacy boot mode. Some ESXi installations supports both legacy boot mode and UEFI boot mode. You must set the BIOS to either legacy boot mode or UEFI boot mode before you perform the OS installation.
Caution - Possible system failure. Changing the boot mode after installation might make the disk drive unbootable. Depending on the boot mode at OS installation, you can create an incompatible boot disk format. |
POST messages appear on the console.
The BIOS Setup Utility main screen appears.
The Boot Menu screen appears.
Next Steps